This is a hybrid of A. fulgens and A. humilis. A. fulgens is a large-growing and spreading/upright species with heavy leaves, previously in cultivation as A. evrardii; A. humilis is much more compact, with smaller more delicate leaves, and was grown for many years as A. hildebrandii. Both have bright orange flowers that are somewhat similar in form. ‘Hot Flash’ retains the bright color and flower form of the parents, on a plant that is intermediate in size. It is an excellent cultivar, fairly easy to grow indoors.
‘Hot Flash’ is a hybrid from the late Bartley Schwarz, introduced in 1984.
Other photos of the flowers on this spectacular cultivar may be seen in a slideshow by clicking one of the links below: